Means for handling smelting-furnace residues.



E. DOR-DELATTRE. MEANS FOR HANDLING SMELTING FURNACE RESIDUES,

4 SHEETS-SHEET 1.

Patented July 9, 1912.

APPLICATION FILED MAR.18,1911.

E. DOR-DELATTRE.

MEANS FOR HANDLING SMELTING FURNACE RESIDUES.

APPLIGATIONFILED MAR.18,1911.

3L 31991 & Patented July 9, 1912.

4 SHEETSSHEET 2.

waaw C E. DOR-DELATTRB.

MEANS PGR HANDLING SMELTING FURNACE RESIDUES.

APPLICATION FILED MAR.1 8,1911.

S-SHBET 3.

Patented Ju 4 SHEET ill Wu, WMCW .E. DOR-DELATTRE.

MEANS FOR HANDLING 'SMELTING FURNACE RESIDUES.

APPLICATION FILED MAR.18,'1'911.

1 01 91 Patented July 9, 1912.

L SHEETSSHEET 4.

EMILE DOB-DELATTEE, OF LIEGE, BELGIUM.

MEANS FOR HANDLING SIMEEL'II NG-FURNACE RESIDUES.

earers;

I Specification of Letty'ers Eatent.

Patented July/'9, 1912 Application filed March 18, 1911. Serial No.615,306.

To all whom it may concern:

Be it known that I, EMiLn DOR-DELATTRE, subject of the King of Belgium,residing at Liege, Belgium, have invented certain new and usefulImprovements in Means for Handling smelting-Furnace Residnes; and I dohereby declare the following to be a full, clear, and exact descriptionof the 1nvention, such as will enable others skilled in the art to whichit appertams to make and use the so me.

Inthe manufacture of zinc itusually hap pens that thoseportions of themixture of ore and coal which are found at the front- .ends of theretorts are very imperfectly reduced. hen the retorts are cleared outthese non-reduced portions can be collected separately from the others,but it is then necessary to spread them on the working floor, whichcauses very serious inconveniences by reason of the enormous quantitiesof fumes and dust which are evolved, and'by reason of their great heat.It is thus found necessary to allow them to fall into the pit, wherethese non-reduced parts mix with the waste or useless parts; it istherefore practically impossible to use them over again, which resultsin a very considerable loss.

The object of the present invention is to mechanically separate theseresidues of man- :ut'acture into two distinct parts, so that one canrecover, easily and without expense, those parts which are of value.

The accompanying drawings represent an arrangement for attaining thisresult.

Figure 1 is a vertical section. through a furnace and its pit, thetrolley or receptacle for the residue being shown at the right hand sidenearest the furnace. Fig. 2 is a similar view to Fig. 1, but shows theresidue receptacle at the left hand side, Way from the furnace. Fig. 8is a longitudinal section through one of the pits on A.r i (Fig. 1).Fig. 4 is a horizontal section on B-B (Fig. 1). Fig. is a horizontalsection on (l-C (Fig. 2). Fig. 6 shows modification, same beingrepresented in section similar to Fig. 1. Fig. *2 is another view ofthis n1oditlcation corresponding to Fig. 2.

The rich residues, which represent the in completely reduced part of thecharge, are first removed from the retorts a, which can readily be done,since they are situated in that part of the reterts which is nearest theopen end. This part of the residues is allowed to tail through openings7), arranged.

arrangementwhich may be adopted.

longitudinally for the Whole length of the furnace, into a series oftrolleys or receptacles (Z situated in the pit e ot thc furnace. Thesereceptacles d are mounted, by means of pivots f, on rollers g, which runon rails h, which are, either inclined or horizontal according to thedepth of the pit c. When these pits are sufficiently deep (Fig. 1) therails 12. are preferably inclined so as to form a gradient sloping downtoward the furnace; the receptacles 03 then tend to take the positionrepresented in Fig. 1. When the pits e are of less depth and the railsare horizontal (Figs. 6 and 7), the receptacles d are moved toward thefurnace c (Fig. 6) by counterweights i acting on the pivots f of thesereceptacles. In this position, the receptacles d are situated beneaththe openings Z), so that they receive the rich residues when some areremoved'from the retorts. When these rich residues have been removedfrom the rctorts a and the receptacles (Z are filled, these latter, aredrawn along the rails it in order to empty their contents into the pitat is.

The moving of the receptacles (Z along the rails, as Welles the emptyingof the receptacles, can be effected in any suitable mam nor. The drawingrepresents a mechanical The pivots i of the dili'erent receptacles (Z ofeach series are connected, by chains or cables Z, to a motor or piston(preferably hydraulic) capable of exerting a pull upon the cable m (Fig.4) and consequently removing the receptacles (Z from the furnace 0(Figs. 2, 5 and 7). The emptying of the receptacles is effectedautomatically when they reach the required position, by chains a; oneend of each chain it is fixed to a lever 79 on the re: ceptacle, whilethe other end is attached to a fixed point 0. The length of the chainsis such'that they become taut when the receptacles d arrive at the endof their travel, which has the effect of inverting the receptacles whenthey arrii'ze atthe point where the discharge should. take place. Whenthe rich residues have been tlnis collected in the heap 7c, thereceptacles d are retained at a suilicient distance away from thefurnace in order that the waste residues can fall directly into the pitsc through the openings 1) and form the heap y If necessary separators r,of sheet-iron or stone, can be placed in the pits c in. order to preventthe mixing of the two dltlcrent heaps A: and g. It IS zinc. V i I Iclaim:

obvious that this mechanical separation can be effected, in-the furnacepits, by means other than that described above which will have theeffect, according to the position which they occupy, of depositing theproducts of the retorts on to the heap k or to the heap g. This-methodof separation and the means therefor are equally applicable to otherindustries than the manufacture of 1. The combination with a smeltingfurnace, and a pit having an inlet to receive material Withdrawn from'the furnace, of means whereby useful and waste portions of materialwithdrawn from the furnace may be set arated Within thepit withoutexposing t e furnace operatives to the heat, and

gases arising from such material. v 2. The'combination with a smeltingfurnace, and a pit having an inlet to receive material withdrawn fromthe furnace, of means within the pit adapted to be adjusted to receivematerial passing through said in let and to discharge such materialwithin the Witnesses:

pit at points other than those where' material .passing through theinlet when said means is not positioned to receive it will be deposited,whereby useful and waste portions of the material withdrawn from thefurnace may be separated without exposing the operatives to the heat,and gases escaping from the material.

3. The combination with a smelting fur 'nace, and a pithaving'an-inlet'adapted to directly receive material withd'raw'n'fromthe furnace, .of a receptacle supported to move in the it to and from 'aposition where it" wil receive material passing through said inlet,means separating the pit linto compartments into one of which the inletopens, ,and means for automatically discharging the contents of thereceptacle into another of said compartments. N

In testimony whereof I afiix my'sig'nature in presence'of two witnesses.

EMILE DOR-DELATTRE.

A. NAINLOL, 'En. SEPULOHRE,

